September 3 in History

Significant events that happened on this day.

Today

Historical Events

2017

North Korea conducted its sixth and most powerful nuclear test, triggering a 6.3 magnitude earthquake

The underground detonation was so powerful it caused an artificial earthquake detected worldwide. North Korea claimed it was a hydrogen bomb capable o...

1981

The original recipe for Coca-Cola was sold to the company for $2.3 million

A group of investors purchased the handwritten formula from the estate of Ernest Woodruff and sold it to Coca-Cola, which locked it in a vault at SunT...

1976

The American spacecraft Viking 2 found evidence that Mars once had liquid water

Analysis of images and data from the lander revealed ancient river channels and erosion patterns on the Martian surface. This discovery revolutionized...

1976

NASA's Viking 2 spacecraft successfully landed on Mars

Major

The lander touched down in the Utopia Planitia region, joining its twin Viking 1 which had landed six weeks earlier. Viking 2 operated for over three...

1967

The television show 'What's My Line?' aired its final episode after 17 years

The panel game show, which premiered in 1950, became one of the longest-running game shows in television history. Celebrity panelists asked yes-or-no...

1967

Sweden switched from driving on the left side of the road to the right side in a single day

Known as 'Dagen H' (H-Day), all traffic in Sweden stopped at 4:50 AM, carefully switched sides, and resumed at 5:00 AM. The transition involved changi...

1939

Britain and France declared war on Germany, marking the official start of World War II in Europe

Major

After Germany's invasion of Poland two days earlier, British Prime Minister Neville Chamberlain announced that Britain was at war with Germany. France...

1895

The first professional football game in the United States was played in Latrobe, Pennsylvania

The Latrobe Athletic Association faced off against the Jeannette Athletic Club in what's recognized as the first entirely professional American footba...

1833

The New York Sun newspaper was founded, launching the era of the 'penny press'

Sold for just one cent, the Sun was the first successful penny newspaper, making news accessible to working-class readers for the first time. Its sens...

1783

The Treaty of Paris was signed, officially ending the American Revolutionary War

Major

American and British negotiators signed the treaty in Paris, with Great Britain formally recognizing American independence. The treaty established the...

1752

This date technically never existed in the British Empire due to calendar reform

When Britain adopted the Gregorian calendar, the country skipped from September 2 directly to September 14, eliminating 11 days. Many Britons proteste...

Fun Facts from September 3